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Old 06-04-2019, 07:06 PM
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Join Date: Nov 2008
Location: Nassau County
Posts: 4,883
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Sorry, I meant the area of the sump where the ATO sensor is located but it sounds like that’s calm as well.

There’s a tunze sponsor forum on RC. If you post the question there he usually answers pretty quickly. LMK how it goes- my Tunze ATO has never had that issue so it’s interesting

Elos System 70 SPS
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Old 06-04-2019, 07:56 PM
Reefer Always Learning
Join Date: Oct 2015
Location: Wantagh, Long Island, NY
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is there a bend in the line from the pump into your sump?i found my tunze line needed to rise at least a foot from the ATO chamber back into the sump or it would drip until ATO was empty. also, the pump may have air in it. just blow through the return line a few times to clear the air.
I am a reefer in honor of our disappearing reefs and to celebrate biodiversity.
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